Coiled tubing
Each of these papers presented at SPE conferences exemplifies the continued progress of industry solutions to maximize commercial value of basins within ever-changing oil and gas dynamics.
This paper details a trial involving the deployment of a transportable coiled tubing (CT) unit capable of holding 30,000 ft of high-strength 2⅞-in. CT.
This paper presents a novel approach to overcoming extended-reach limitations in coiled tubing interventions by using a split-string system, demonstrating measurable improvements in reach and operational speed in laterals exceeding 3 miles.
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This study highlights the strategic implementation of coiled tubing to convey perforating guns in extended-reach wells, overcoming the lockup effect through the deployment of downhole tractors and real-time monitoring tools. -
The advances presented in the selected papers, and many others, would not be possible without improvements in our understanding of materials, how to protect coiled tubing pipes, how to get the best performance out of them under downhole conditions that are becoming every day more extreme, and how to preserve wellbore completion at the same time.
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This study emphasizes the vital need to evaluate well conditions and working-fluid compatibility with coiled tubing materials to prolong coiled tubing operational life.
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This paper describes the application of an underbalanced coiled tubing technology in tight sandstones, using an integrative approach that incorporates petrophysical, geophysical, and reservoir engineering data.
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This study illustrates how a combination of a straddle-packer system and a downhole real-time telemetry successfully stimulated up to 38 stages while maintaining packer-seal integrity and downhole pressure.
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The authors of this paper describe an underbalanced coiled-tubing drilling campaign in the operator’s onshore fields using a closed-loop system design.
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The authors describe a casing-leak-repair alternative to allow continued hydraulic fracturing of an unconventional formation.
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The authors describe coiled tubing operations that used a riser on a monohulled vessel already performing riserless interventions.
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Coiled tubing has a key role to play, with strong arguments for itself: It is used throughout the life of a well, from exploration to abandonment, and its flexibility of use, combined with recent technology developments in pipe materials, real-time downhole telemetry, and specialized downhole tools—just to name a few—opens avenues to perform in a rigless manner many o…
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